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Ask a lot of people what the purpose of a telescope is, and chances are they will say something like, "to make distant objects look bigger." I'm a guest speaker at local schools, and I always get that answer or something close to it when I ask that question.

Is the basic role of a telescope really to make things look bigger? Take this test. Step outside on a clear night from a brightly lit room. See anything? Probably not. But it gets better after a few minutes, doesn't it? In fact, after a while, you'll wonder why you didn't see all those stars before. What made it better? Did you change the magnification (放大率), or make the outside size of anything change? Of course not. What you did change, was the amount of light your eyes gathered. So, the basic role of a telescope is to gather light.

The more light a telescope gathers, the more powerful it is. And remember, telescope apertures (光圈) are circles, and the areas of circles increase with the square of the radius (范圍), so moving up in aperture (光圈), even a little can have big results. Although the size of a 7X50 binoculars (雙眼望遠(yuǎn)鏡) looks about the same as a 7X35's, the 7X50 binoculars gather over twice the light of the 7X35 binoculars do. So, you should buy the biggest telescope you can get.  

60. The test is mentioned in the second paragraph to show ________.

A. the basic role of a telescope is to make distant objects look bigger

B. eyes need a period of time to get over the darkness

C. the basic role of a telescope is to gather light

D. the similarity between people's eyes and telescopes

61. What is the main point the writer is trying to make in the last paragraph?

A. The bigger the telescope you buy is, the better.

B. The power of a telescope depends on the square of the radius.

C. The difference between a 7X50 binoculars and a 7X35 binoculars.

D. If necessary one had better choose a bigger telescope.

62. The text probably appears in ________.

A. a product introduction   B. a science report

C. an advertisement       D. a notice

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科目：高中英語(yǔ) 來(lái)源： 題型：022

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When he was a child, he used ______(ask) a lot of questions that had nothing to do with the text.

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科目：高中英語(yǔ) 來(lái)源：2011年河南省南陽(yáng)市高二下學(xué)期期末考試英語(yǔ)題 題型：信息匹配

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When I walked into the house after school, the first thing I noticed was a box with items I recognized from my dad’s office. When he told me that he was laid off, I thought he was joking. Then I noticed his seriousness and realized he was telling the truth. My father has always been a hard worker. He has prided himself on his career. 1. I

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